amitshah3333's blog

Physical significance of strain

Submitted by amitshah3333 on Mon, 04/15/2013 - 11:21

Hi All,

I would like to know about physical significance of Strain. How
it determines failure of structure?

Say for example Compressive strain of concrete being 0.002.
Does it means that if (any) concrete member of original length 100mm deforms 2
mm (when compressed) will fail? Since Strain in this case will be (2/100) =
0.02?

Request you to help me to understand concept of strain.

Thankyou,

Amit

Reinforcement bar relation with concrete (grade) strength

Submitted by amitshah3333 on Tue, 11/27/2012 - 12:11

Hi,

For any structure (beam/slab/column etc) subjected to a same (fix) load, If I am using different grades of concrete (M10, M30, M60, M80 etc), what will be effect on reinforcement? Will it remains same or change? Is there any thumb rule for same?

Whether percentage of reinforcement will remain same or change with change in grade of concrete?

Thankyou,

Amit

Want guidance/help for Shell Modelling

Submitted by amitshah3333 on Tue, 11/20/2012 - 09:40

Hi,

I am trying to do SHELL modeling of a problem to get Bending moment, Shear force, Axial Force etc.

Problem can be simply explained as below:

Model is just a like a room (block) with 4 surrounding wall, a roof and ground (Base).

Height (H) of (any) pair of opposite walls are not same, i.e say H front = 5m and H rear = 3m.

(Base) ground is straight whereas roof is inclined from front wall towards rear wall.

Better Processor for Mech Engg softwares???

Submitted by amitshah3333 on Fri, 10/12/2012 - 05:19

Hi,

I want to run engineering softwares like solidworks, ansys, ls-dyna, hypermesh etc on desktop pc.

I am planning to assemble a pc for it. Can anyone suggest better processor? I am stuck between AMD fx8150, Intel's I7 2600k and I7 3770 processor.

Which one of above or any equivalent (in same budget) will be better?

Thankyou,

Amit

Better Processor for Mech Engg softwares???

Submitted by amitshah3333 on Fri, 10/12/2012 - 05:19

Hi,

I want to run engineering softwares like solidworks, ansys, ls-dyna, hypermesh etc on desktop pc.

I am planning to assemble a pc for it. Can anyone suggest better processor? I am stuck between AMD fx8150, Intel's I7 2600k and I7 3770 processor.

Which one of above or any equivalent (in same budget) will be better?

Thankyou,

Amit

Body to Ground Spring in ANSYS CLassic

Submitted by amitshah3333 on Thu, 09/06/2012 - 05:19

Hi All,

I want to model underground circular pipe embedded inside ground/earth for transient structural analysis in ANSYS Classic.

I am using shell element for pipe structures. To represent surrounding ground/earth,

I want to use Springs of appropriate stiffness on outer periphery of pipe structures.

Can anybody guide/help how to represent this springs? Which element to use in ANSYS Classic.

Difference between Beam and Shell Model

Submitted by amitshah3333 on Tue, 09/04/2012 - 07:51

Hello, I am trying to solve structural problem of loaded pipe structure in ANSYS.

I tried two method/way.

First I modelled pipe structure as BEAM element and defined the cross-section.

Secondly, I modelled the pipe structure as Shell element and defined thickness.

Now during post-processing, I noticed very large deviation in shear force, axial force and bending moment (nearly 3 times more in BEAM model cmpr to SHELL model)